﻿using WeiXin.Base.Pay.Lib;

namespace WeiXin.Base.Pay
{
    /// <summary>
    /// 退款
    /// </summary>
    public class Refund
    {
        /// <summary>
        /// 申请退款完整业务流程逻辑
        /// </summary>
        /// <remarks>
        /// 微信订单号和商户订单号任选其一
        /// </remarks>
        /// <param name="transaction_id">微信订单号（优先使用）</param>
        /// <param name="out_trade_no">商户订单号</param>
        /// <param name="total_fee">订单总金额(单位:分)</param>
        /// <param name="refund_fee">退款金额(单位:分)</param>
        /// <param name="out_refund_no">商户退款单号</param>
        /// <returns>退款结果</returns>
        public static WxPayData Run(string transaction_id, string out_trade_no, string total_fee, string refund_fee, string out_refund_no)
        {
            #region 申请退款完整业务流程逻辑
            WxPayLog.Info("Refund", "Refund is processing...");

            WxPayData data = new WxPayData();
            if (!string.IsNullOrEmpty(transaction_id))//微信订单号存在的条件下，则已微信订单号为准
            {
                data.SetValue("transaction_id", transaction_id);
            }
            else//微信订单号不存在，才根据商户订单号去退款
            {
                data.SetValue("out_trade_no", out_trade_no);
            }

            data.SetValue("total_fee", int.Parse(total_fee));//订单总金额
            data.SetValue("refund_fee", int.Parse(refund_fee));//退款金额
            data.SetValue("out_refund_no", out_refund_no);//商户退款单号
            data.SetValue("op_user_id", WxPayConfig.MCHID);//操作员，默认为商户号

            WxPayData result = WxPayApi.Refund(data);//提交退款申请给API，接收返回数据

            WxPayLog.Info("Refund", "Refund process complete, result : " + result.ToXml());
            return result; 
            #endregion
        }
    }
}